Comparative Large Amplitude Oscillatory Shear (LAOS) Study of Ionically and Physically Crosslinked Hydrogels.

ABSTRACT: Hydrogels are highly versatile and widely applicable materials within various scientific, technological, and food sectors. Alginate and gelatin hydrogels, along with their crafted variations, are possibly the most common ones. However, the ionic crosslinking of alginate-Ca⁺⁺ is a different gelation mechanism than the physical crosslinking of gelatin. In this work, we prepare alginate-Ca⁺⁺ hydrogels using individual layer gelation and experimentally evaluate LAOS rheological behavior. We apply shear-stress decomposition using the MITlaos software and obtain the elastic and viscous contributions within the nonlinear response of the individual alginate-Ca⁺⁺ layer. We compare these results with the nonlinear responses of the gelatin-alginate ex situ indi

SUBMITTER: Goudoulas TB 

PROVIDER: S-EPMC10051575 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature